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| Where are you going to buy them? Is it your mom’s birthday today? What can you do for your mother? Happy birthday to your mother! I’m going to buy some story books with my sister. |
A: Hello, Bob. What are you going to do?
B:
A:
B: In the bookstore. Are you going there with us?
A: No, I’m not. I’m going to have a party for my mom with my family.
B: Wow!
A: Yes, it is.
B:
A: I can make a birthday card.
B: You are a good boy.
A: Thank you!
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
